Oxidation and Reduction

Substance that reduces another substance by losing electrons.

• reducing agent

• half-reaction

• electronegative atom

• oxidizing agent

Reduction involves 

• gaining electrons; gaining oxygen

• losing electrons; losing oxygen

• gaining electrons, losing oxygen

• losing electrons; gaining oxygen

Identify the substance that is reduced in the reaction between hydrogen and iron(II) oxide.

• H₂

• FeO

• H₂O

• Fe

Identify the substance that is oxidised in the reaction between carbon and zinc oxide.

• C

• ZnO

• CO₂

• Zn

What type of reaction is this: SF₄ becomes SF₆

• Hydrogenation

• Reduction

• Oxidation

• None of the above

Tags

NGSS.HS-PS1-2

C₂H₂ becomes C₂H₆

• Reduction

• Oxidation

• Neither

• Combustion

Which statement is true:
Mg → Mg²⁺ + 2e^–

• Mg gains 2 electrons

• Mg_²⁺ loses 2 electrons

• Mg loses 1 electron

• Mg loses 2 electrons

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What substance is oxidized in the following reaction?
4Fe + 3O₂ --> 2Fe₂O₃

• Iron

• Fluorine

• Oxygen

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Cl₂ + 2e- --> 2Cl ^- is an example of:

• a chemical reaction

• redox

• oxidation

• reduction

In the reaction Zn + H₂O --> ZnO₂ + H₂
 which element, if any, is oxidized? 

• Zinc

• Hydrogen

• Oxygen

• None